Polymer Ball Bearing, Bearing Industry Number 6001, Bore Diameter 12 mm, Closure Open, Outer Ring Width 8 mm, Outside Diameter 28 mm, Ring Material Polymer, System of Measurement Metric, Cage Material , Application Plastic Bearings, Ball Material Stainless Steel, Cage Material Grade Polyamide, Dynamic Radial Load Capacity 147 N, Includes Retaining Ring No